摘要
为更好地开展松毛虫赤眼蜂生物防治工作,设置喂食1次20%蜂蜜水、持续喂食20%蜂蜜水、喂食1次20%蔗糖水、持续喂食20%蔗糖水4个糖源供给方式和1个持续喂食清水对照,研究糖源对松毛虫赤眼蜂寿命、寄生能力和飞行能力的影响。结果表明,喂食20%蜂蜜水或20%蔗糖水,会显著提升松毛虫赤眼蜂的寿命、寄生能力和飞行能力,且持续喂食糖源要优于喂食1次糖源。通过喂食糖源,松毛虫赤眼蜂寿命会提升2.2~22.0 d,寄生卵粒数增加5.9~9.9粒,在持续喂食20%蜂蜜水时寿命和寄生能力最佳,分别为23.0 d和81.1粒;通过喂食20%蜂蜜水或20%蔗糖水,松毛虫赤眼蜂种群中无飞行能力比例会下降6.0%~7.3%,飞行能力2级比例会提升10.9%~12.4%。因此,糖源供给有利于进一步开发松毛虫赤眼蜂生防潜能,提升其对玉米螟等虫害的防效。
In order to enhance the effectiveness of Trichogramma dendrolimi as biocontrol agent,four sugar sources as a diet were set up as,T.dendrolimi fed once with 20%honey solution,continuously fed with 20%honey solution,fed once with 20%sucrose solution,continuously fed with 20%sucrose solution,and a control group of continuously fed with water.The biological parameters such as the lifespan,parasitism ability,and flight ability of T.dendrolimi was compared when were fed with different diets.The results showed that the lifespan,parasitism ability and flight ability of T.dendrolimi significantly improved when was fed with 20%honey solution or 20%sucrose solution.The T.dendrolimi wasps continuously fed with sugar solution was also better than the wasps fed with a sugar source once.The lifespan of T.dendrolimi fed with sugar solution increased significantly 2.2-22.0 days,and the number of eggs parasitized also increased by 5.9-9.9.The lifespan and parasitic ability were the best when the wasps were continuously fed with 20%honey solution,with 23.0 days and 81.1 eggs,respectively.When the T.dendrolimi wasps were fed with 20%honey solution or 20%sucrose solution,the proportion of non flying ability in the population of T.dendrolimi decreased by 6.0%-7.3%,and the proportion of flying ability at level 2 was increased by 10.9%-12.4%.These results indicated that the provision of sugar sources are beneficial for further developing the biocontrol potential of T.dendrolimi and improving its control effectiveness against maize borer and orher insect pests.
作者
张晨
曹文润
王宇
ZHANG Chen;CAO Wenrun;WANG Yu(Agricultural College,Jilin Agricultural Science and Technology University,Jilin 132101,China)
出处
《黑龙江农业科学》
2024年第8期39-43,共5页
Heilongjiang Agricultural Sciences
基金
吉林省科技发展计划项目(YDZJ202301ZYTS366)。
关键词
松毛虫赤眼蜂
糖源
寿命
寄生能力
飞行能力
Trichogramma dendrolimi
sugar sources
lifespan
parasitism ability
flight ability
